Resolution and post-lexical integration extend beyond 500 ms. Methodological Influences on Timing The duration recorded in an ERP waveform is heavily dependent on the type of manipulation employed.
N400 Latency Time Course: Understanding the Full Duration and Cognitive Stages
Factors such as stimulus modality, task difficulty, and individual cognitive processing speed introduce variability. The peak of the N400 waveform typically occurs at 400 ms.
Stimulus Type Typical Peak Latency Duration of Effect Single Word ~400 ms 300-500 ms Sentence Final Word ~400-450 ms 400-600 ms Visual Object Mismatch ~400-500 ms 350-550 ms Clinical and Applied Perspectives. The Cascade of Cognitive Processing The question of duration is intertwined with the stages of cognition it indexes.
N400 Latency Time Course: Understanding the Duration and Key Timeframes
Early perceptual analysis occurs within the first 200 milliseconds. The N400 component is a fundamental event-related potential (ERP) marker that captures the brain’s response to semantic incongruity.
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